During World War II, Feyerabend served as an officer of the Luftwaffe of Nazi Germany. He held the command of the 2nd Flak Division during three tenures between July 1938 and February 1942. On 20 April 1939, he was promoted to the rank of Generalmajor.[2] When the 2nd Flak Division was sent to the Eastern Front and replaced in its garrison of Leipzig by the creation of the 14th Flak Division, Feyerabend took command of that division and remained in charge until 1 December 1942, when he was replaced by Rudolf Schulze.[3] In the last days of the war, Feyerabend briefly held the command of the 27th Flak Division. At the end of the war, he held the rank of Generalleutnant.[4]
^Mitcham, Samuel W. (2007). "2nd Flak Division". 1st–290th Infantry Divisions in WWII. German Order of Battle. Vol. 1. Stackpole Books. ISBN9780811746540.
^Mitcham, Samuel W. (2007). "14th Flak Division". 1st–290th Infantry Divisions in WWII. German Order of Battle. Vol. 1. Stackpole Books. ISBN9780811746540.
^Mitcham, Samuel W. (2007). "27th Flak Division". 1st–290th Infantry Divisions in WWII. German Order of Battle. Vol. 1. Stackpole Books. ISBN9780811746540.